Display control methods and apparatuses

ABSTRACT

Various display control methods and apparatuses are provided. A method comprises inclining at least one display unit relative to an initial normal thereof to change a ratio of pixels distributed along two directions in each effective display region of the at least one display unit of a display system, wherein light emitted by each pixel in the effective display region of each display unit in the at least one display unit is transmitted to a visual angle range by a lens corresponding to the display unit in the display system, and the two directions comprise a first direction and a second direction parallel with the display unit and orthogonal with each other; and displaying a content to be displayed by the changed display system. Accordingly, differentiated display of visual angle information of two mutually orthogonal different directions can be realized.

RELATED APPLICATION

The present application claims the benefit of priority to Chinese PatentApplication No. 201510305630.4, filed on Jun. 5, 2015, and entitled“Display Control Methods and Apparatuses”, which application is herebyincorporated into the present application by reference herein in itsentirety.

TECHNICAL FIELD

The present application relates to the technical field of display, and,for example, to various display control methods and apparatuses.

BACKGROUND

Along with more and more individualized requirements of a user on thedisplay image, a traditional display technology-based improvementtechnology continuously gets rid of the stale and brings forth thefresh, for example, technologies such as a display array and light fielddisplay can realize relatively flexible display effects such as lightfield reconfiguration and vision correction display by similar hardwarestructures of the traditional display technology.

SUMMARY

The following gives brief description of the present application toprovide basic understandings on some aspects of the present application.It should be understand that the description is not an exhaustiondescription of the present application. It intends to determine neitherkey or important parts of the present application or a scope of thepresent application, and merely aims to give some concepts in asimplifying manner, thereby serving as a preorder of the more detaileddescription discussed later.

The present application provides various display control methods andapparatuses.

On a first aspect, an embodiment of the present application provides adisplay control method, comprising:

inclining at least one display unit relative to an initial normalthereof to change a ratio of pixels distributed along two directions ineach effective display region of the at least one display unit of adisplay system, wherein light emitted by each pixel in the effectivedisplay region of each display unit in the at least one display unit istransmitted to a visual angle range by a lens corresponding to thedisplay unit in the display system, and the two directions comprise afirst direction and a second direction parallel with the display unitand orthogonal with each other; and

displaying a content to be displayed by the changed display system.

On a second aspect, an embodiment of the present application furtherprovides a display control apparatus, comprising

an inclining control module, configured to incline at least one displayunit relative to an initial normal thereof to change a ratio of pixelsdistributed along two directions in each effective display region of theat least one display unit of a display system, wherein light emitted byeach pixel in the effective display region of each display unit in theat least one display unit is transmitted to a visual angle range by alens corresponding to the display unit in the display system, and thetwo directions comprise a first direction and a second directionparallel with the display unit and orthogonal with each other; and

a display control module, configured to display a content to bedisplayed by the changed display system.

On a third aspect, an embodiment of the present application providesanother display control apparatus, comprising:

a processor, a communication interface, a memory and a communicationbus; the processor, the communication interface and the memory finishmutual communication by the communication bus;

the memory is configured to store at least one command; the at least onecommand enables the processor to execute following operations:

inclining at least one display unit relative to an initial normalthereof to change a ratio of pixels distributed along two directions ineach effective display region of the at least one display unit of adisplay system, wherein light emitted by each pixel in the effectivedisplay region of each display unit in the at least one display unit istransmitted to a visual angle range by a lens corresponding to thedisplay unit in the display system, and the two directions comprise afirst direction and a second direction parallel with the display unitand orthogonal with each other; and

displaying a content to be displayed by the changed display system.

According to one or more example embodiments of the present application,a manner of inclining at least one display unit relative to an initialnormal thereof is adopted to change a ratio of pixels distributed alongthe first direction and the second direction in each effective displayregion of at least one display unit, to cause that in each effectivedisplay region of the at least one display unit, a quantity of pixelsdistributed along the first direction and a quantity of pixelsdistributed along the second direction are different, a pixel ratio ofthe two is not equal to 1, thus, by using the display system with the atleast one inclined display unit for content display, a proportion ofpractically displayed parallax information of the at least one displayunit respectively displayed in the first direction and the seconddirection is changed, and differentiated display of the visual angleinformation in different directions is realized to cause the practicallydisplayed content to present differentiated angle resolutions ofdifferent directions, thereby better meeting diversified practicalapplication requirements.

By following detailed description on optional embodiments of the presentapplication in combination with drawings, these and other advantages ofthe present application will be more obvious.

BRIEF DESCRIPTION OF THE DRAWINGS

The present application will be better understood in reference to thedescription given in combination with the drawings, same or similardrawing marks used in all drawings to denote same or similar parts. Thedrawings together with the detailed description are contained in thepresent description and form a part of the present description, and areused for further exampling to describe the optional embodiments of thepresent application and explain principles and aspects of the presentapplication. In the drawings:

FIG. 1 is a flow chart of a display control method according to anexample embodiment of the present application;

FIG. 2 is a structural schematic diagram of a light field displayaccording to an example embodiment of the present application;

FIG. 3 is a structural schematic diagram of a display array according toan example embodiment of the present application;

FIG. 4a is a light path illustration based on a non-inclined displayunit according to an example embodiment of the present application;

FIG. 4b is a light path illustration based on an inclined display unitaccording to an example embodiment of the present application;

FIG. 4c is a light path illustration based on another inclined displayunit according to an example embodiment of the present application;

FIG. 5a is an illustration of one type of a plurality of inclineddisplay units according to an example embodiment of the presentapplication;

FIG. 5b is an illustration of another type of a plurality of inclineddisplay units according to an example embodiment of the presentapplication;

FIG. 5c is a light field display equivalent light path illustrationaccording to an example embodiment of the present application;

FIG. 6a is an illustration of an effective region before and afterinclining of a display unit according to an example embodiment of thepresent application;

FIG. 6b is a rotating illustration of a display unit according to anexample embodiment of the present application;

FIG. 7 is another light field display equivalent light path illustrationaccording to an example embodiment of the present application;

FIG. 8 is a logic block diagram of a first display control apparatusaccording to an example embodiment of the present application;

FIG. 9 is a logic block diagram of a second display control apparatusaccording to an example embodiment of the present application;

FIG. 10 is a logic block diagram of a third display control apparatusaccording to an example embodiment of the present application; and

FIG. 11 is a logic block diagram of a fourth display control apparatusaccording to an example embodiment of the present application.

Those skilled should understand that elements in the drawings are merelyfor the purpose of simplicity and clearness and are not drawn inproportion. For example, sizes of some elements in the drawings areamplified relative to other elements, to help to improve understandingson the embodiments of the present application.

DETAILED DESCRIPTION

The following will describe exemplary embodiments of the presentapplication in detail in combination with the drawings. For the purposeof clearness and briefness, not all characteristics of practicalembodiments are described in the description. However, it should beunderstood that in a process of developing such practical embodiments,many decisions specific to the embodiments have to be made to facilitatedevelopers to realize specific targets, for example, those conditionsrelated to the system and business, and those conditions may be changedalong with difference of the embodiments.

In addition, it also should be indicated that in order to preventunnecessary details from blurring the present application, onlyapparatus structures and/or processing steps tightly related tosolutions according to the present application are described in thedrawings and description, and presentation and description of parts andprocessing known by those common skilled in the art and unrelated to thepresent application are omitted.

Example embodiments of the present application are described in furtherdetail below with reference to the drawings (in which like elements aredenoted by like reference numerals) and corresponding description. Thefollowing embodiments are intended to describe the present application,but not to limit the scope of the present application.

A person of ordinary skill in the art should understand that the terms“first” and “second” in the present application merely intend todifferentiate different steps, devices or modules, and present neitherany specific technical meaning nor necessary logic sequence among thedifferent steps, devices or modules.

FIG. 1 is a flow chart of a display control method according to anembodiment of the present application. An execution body of a displaycontrol method according to the embodiment of the present applicationcan be some display control apparatus, the display control apparatus canconduct display control of content by executing the display controlmethod in an application process comprising but not limited to contentpresentation, video display, etc. For example, the display controlapparatus can be some or one independent part, which matches andcommunicates with a display system comprising display unit; or thedisplay control apparatus can be integrated in the display systemcomprising the display unit as certain function module. Specifically, asshown in FIG. 1, the display control method according to an embodimentof the present application comprises:

S101: Incline at least one display unit relative to an initial normalthereof to change a ratio of pixels distributed along two directions ineach effective display region of the at least one display unit of adisplay system, wherein light emitted by each pixel in the effectivedisplay region of each display unit in the at least one display unit istransmitted to a visual angle range by a lens corresponding to thedisplay unit in the display system, and the two directions comprise afirst direction and a second direction parallel with the display unitand orthogonal with each other.

S102: Display a content to be displayed by the changed display system.

The initial normal of the display unit according to the embodiment ofthe present application is a normal direction when the display unit isin a non-inclined state, usually, in the display system according to theembodiment of the present application, the lens and the display unit arecorrespondingly arranged, the initial normal of the display unit isparallel with the optical axis of the lens, and the initial normal andthe optical axis of the lens are parallel with a horizontal plane.

The display unit comprises a plurality of pixels in array distribution,for a display system with functions such as light field reconfigurationor vision correction display, generally not all pixels of each displayunit participate in essence display of the content; light emitted frompartial pixels in the display unit is transmitted to certain visualangle range of the display system by a lens corresponding to the displayunit, and these pixels are positioned in an effective region of thedisplay unit; light emitted by other partial pixels of the display unitcannot be transmitted to the visual angle range even being redirected bythe lens corresponding to the display unit, and these pixels arepositioned in regions outside the effective region of the display unit,which are called as ineffective regions.

Sometimes, the display unit is a square, the effective region of thedisplay unit is a round region in the square, other regions besides theround region of the display unit are ineffective regions, and lightemitted by each pixel in the round region (effective region) can betransmitted to a visual angle range of the display system by a lenscorresponding to the display unit. Quantities of the pixels distributedalong different directions in the effective region of the display unitare equal, a ratio (pixel ratio) of the quantities of pixels distributedalong different directions in the effective region is 1, for example,the quantities of the pixels distributed along two orthogonal directions(first direction and second direction) vertical to a normal in theeffective region are equal, a pixel ratio is equal to 1, the effectiveregion provides quantities of the pixels of same proportions for thevisual angle information display of the two directions, and proportionsof amounts of information of the two directions in the visual angleinformation displayed by the effective region are equal.

However, in some cases, the visual angle information of differentdirections has different meanings and/or actions. For example, in ascene using the display system for light field reconfiguration, sincehuman eyes are more sensitive to display details in a horizontaldirection, expect to obtain a higher angle resolution in the horizontaldirection and are insensitive to the display details in a verticaldirection, etc. By adopting a traditional manner for content display,visual angle information of the same proportion of different directionscan be obtained, and the display manner cannot make full use of a pixelresource of the display unit to meet differentiated display requirementson the visual angle information proportion of different directions.

According to one or more example embodiments of the present application,a manner of inclining at least one display unit relative to an initialnormal thereof is adopted to change a ratio of pixels distributed alongthe first direction and the second direction in each effective displayregion of at least one display unit to cause that in each effectivedisplay region of the at least one display unit, a quantity of pixelsdistributed along the first direction and a quantity of pixelsdistributed along the second direction are different, a pixel ratio ofthe two is not equal to 1, thus, by using the display system with the atleast one inclined display unit for content display, a proportion ofpractically displayed parallax information of the at least one displayunit respectively displayed in the first direction and the seconddirection is changed, and differentiated display of the visual angleinformation in different directions is realized to cause the practicallydisplayed content to present differentiated angle resolutions ofdifferent directions, thereby better meeting diversified practicalapplication requirements.

A display system capable of being applied by the example embodiment ofthe present application has a characteristic of adopting a plurality ofpixels to display visual information of different directions of a sameobject in the content to be displayed, according to difference of thedisplay systems, the pixels for displaying visual information ofdifferent directions of the same object in the content to be displayedcan be concentrated and distributed in certain display unit, ordispersed and distributed in different display units, etc. The at leastone display unit comprises situations of a display unit and a pluralityof display units. Optionally, if the pixels for displaying visualinformation of different directions of the same object in the content tobe displayed are concentrated and distributed in certain display unit, aratio of the pixels along two orthogonal directions of the display unitcan be changed, thereby changing the proportions of parallax informationpractically respectively displayed by the display unit in the firstdirection and the second direction, and realizing differentiated displayof the display unit for the visual angle information in differentdirections. Or, optionally, if the pixels for displaying visualinformation of different directions of the same object in the content tobe displayed are concentrated and distributed in a plurality of displayunits, the display units can be determined to change a pixel ratio alongtwo orthogonal directions of each of the display units, thereby changingthe proportions of parallax information practically respectivelydisplayed in the first direction and the second direction by each of thedisplay units, and realizing differentiated display of the display unitfor the visual angle information in different directions. Or, a pixelratio along the two directions of each display unit in the displaysystem can be changed to realize the differentiated display of eachdisplay for the visual angle information of different directions.

Optionally, the display system comprises a light field display, as shownin FIG. 2, the light field display comprises a display array and asub-lens array, which are arranged in sequence, the sub-lens arraycomprises a plurality of lens in array distribution, and the displayarray comprises a plurality of display units in array distribution. Inan optional realizing manner for content display based on the lightfield display, the multidirectional visual angle information of at leastone object in the content to be displayed is respectively displayed bythe pixels of the one of the at least one display unit, in other words,the multidirectional visual angle information of certain object in thecontent to be displayed is displayed by the pixels of the same displayunit. In another optional realizing manner for content display based onthe light field display, the multifunctional visual angle information ofat least one object in the content is displayed by at least two of theat least one display unit, in other words, the multifunctional visualangle information of at least one object in the content is displayed byat least two display units, and practically displayed parts of the atleast two display units have overlapping of certain extent. The lightfield display based on any foregoing realizing display manner canrealize display effects of light field reconfiguration, visioncorrection display, etc., and light transmitted by each lens of thesub-lens array at least contains the multi-visual angle information ofcertain object. In the solution, by changing a ratio of the pixels alongtwo orthogonal directions of the at least one display unit of the lightfield display, a proportion of respectively practically displayedparallax information of the at least one display unit in the firstdirection and the second direction can be changed, and differentiateddisplay of the visual angle information in different directions isrealized to cause the practically displayed content to presentdifferentiated angle resolutions in different directions, thereby bettermeeting diversified practical application requirements.

Optionally, the display system comprises a display array, as shown inFIG. 3, the display array comprises a plurality of displays in arraydistribution, and the display comprises one display unit and one lensarranged in sequence. In a realizing manner of for content display basedon the display array, the multidirectional visual angle information ofcertain object the content to be displayed is displayed by each displayunit of the displays, and light of each display unit is redirected byeach corresponding lens and reconfigured to a light field comprising themulti-visual angle information in a space. In the solution, by changingthe pixel ratio of each of the display units of the display array alongtwo orthogonal directions, a proportion of respectively practicallydisplayed parallax information of the display units in the firstdirection and the second direction can be changed, and differentiateddisplay of the multidirectional visual angle information in differentdirections is realized to cause the practically displayed content topresent differentiated angle resolutions of different directions,thereby better meeting diversified practical application requirements.

Usually, when the display unit is in the non-inclined state, as shown inFIG. 4a , the display unit is vertical to the initial normal thereof,the initial normal is parallel with an optical axis of the lens, in thedisplay unit, an enveloping region of each pixel emitting light tocertain visual angle range by the lens corresponding to the display unitis approximately a round region, namely, the shape of the effectiveregion is approximately round, and a ratio of pixels distributed alongthe first direction and the second direction in the effective region isequal to or approximate to 1.

After the display unit is inclined by an angle relative to the initialnormal thereof, as shown in FIG. 4b or FIG. 4c , in the display unit,the enveloping region of each pixel emitting light to certain visualangle range by the lens corresponding to the display unit becomes ovalfrom round, quantities of the pixels distributed along the firstdirection and the second direction in the effective region with thechanged shape are changed, that is to say, the pixel ratio of the twodirections is not equal to 1.

Pixel distribution characteristics of the effective region with thechanged shape in the display unit relate to an inclining manner and aninclining angle of the display unit relative to the initial normalthereof, the inclining manner and the inclining angle of the displayunit can be flexibly controlled to cause the ratio of the pixelsdistributed along the two directions in the effective region with thechanged shape to meet practical application requirements. For example,the at least one display unit is inclined by an angle relative to thefirst direction to change the shape of each effective region of the atleast one display unit, thereby increasing the quantity of the pixelsdistributed along the first direction in each effective region of the atleast one display unit, in such case, the effective region with thechanged shape of the display unit is an oval of which the long axis isparallel with the first direction, and the quantity of the pixelsdistributed along the first direction in the effective region is morethan the quantity of the pixels distributed along the second directionin the effective region; or the at least one display unit is inclined byan angle relative to the second direction to change the shape of eacheffective region of the at least one display unit, thereby increasingthe quantity of the pixels distributed along the second direction ineach effective region of the at least one display unit, in such case,the effective region with the changed shape of the display unit is anoval of which the long axis is parallel with the second direction, andthe quantity of the pixels distributed along the second direction in theeffective region is more than the quantity of the pixels distributedalong the first direction in the effective region, etc. The pixeldistribution characteristics possibly generated by inclining certaindisplay unit relative to the initial normal thereof are indicated byexamples.

In one optional situation, the quantity of pixels distributed along thefirst direction in the effective region with the changed shape isincreased, while the quantity of pixels distributed along the seconddirection is unchanged, thereby changing a ratio of the pixelsdistributed along two directions in the effective region. The situationcan increase the visual information display amount of the firstdirection and realize the differentiated display of the visualinformation in the two directions. In addition, the display unitcomprises a plurality of pixels in array distribution, generally, theeffective region comprises partial pixels of the display unit, that isto say, the pixels in ineffective regions outside the effective regionof the display unit do not practically record light information in animage display process, thereby causing the pixels of the display unitsto not be fully used; due to the situation, the display unit withadjusted pixel distribution can increase the pixels distributed alongthe first direction in the effective region, and a proportion ofineffective pixels of the display unit is reduced, thereby improving apractical use ratio of the pixels of the display unit.

In another optional situation, thereby reducing the quantity of thepixels distributed along the firs direction in the effective region withthe changed shape is unchanged, while the quantity of the pixelsdistributed along the second direction is reduced, thereby changing aratio of the pixels distributed along the two directions in theeffective region. The situation can reduce the visual informationdisplay amount of the second direction, differentiated display of thevisual information of the two directions is realized, output of thevisual information and processing data volume in the section directioncan be reduced, and in scenes with low attention or demand quantity forthe visual information of the second direction, the situation can savethe resource required for processing the visual information of thesecond direction, and improve the actual use ratio of the resource.

In further optional situation, the pixels distributed along the firstdirection in the effective region with the changed shape is increasedwhile the intervals of the pixels distributed along the second directionis reduced, thereby changing a ratio of the pixels distributed along thetwo directions in the effective region is changed. The situation cancombine advantages of foregoing two situations and improve a practicaluse ratio of resource.

An optional situation further comprises that the quantities of thepixels distributed along the two directions in the effective region withthe changed shape are both increased but different in increment, therebyleading to a change of a ratio of the pixels distributed along the twodirections or, an optional situation further comprises that thequantities of the pixels distributed along the two directions in theeffective region are both reduced but different in increment, therebyleading to a change of a ratio of the pixels distributed along the twodirections, etc., thus realizing the differentiated display of thevisual information of the two directions by changing the ratio of thepixels.

In the example embodiment of the present application, the incliningdirection and/or inclining angle of at least two display units in thedisplay system relative to the first direction can be same or different.The solution has a very flexible realizing manner to meet diversifiedpractical application requirements.

For example, the inclining direction and inclining angle of at least twodisplay units in the display system relative to the first direction aresame. As shown in FIG. 5a , in the light field display, the displayunits in the display array can be inclined by the same angle relative tothe same direction of the first direction. The solution is simple tocontrol and easy to realize, and is favorable for realizingdifferentiated visual information display of different direction of theat least two display units, and realizing unified control.

For another example, the at least two adjacent display units in thedisplay system are inclined relative to first direction in the oppositedirection but by the same inclining angle. As shown in FIG. 5b , in thelight field display, two adjacent display units of the display array areone group, the adjacent two display units in the group are inclined bythe same angle relative to the opposite direction of the firstdirection, for example, in the two adjacent display units A and B, onedisplay unit A is clockwise inclined by an angle with the center thereofas a fulcrum relative to the first direction, the other display unit Bis counterclockwise inclined by the same angle with the center thereofas a fulcrum relative to the first direction, the shape of each inclinedeffective region becomes an oval from an original round, as shown inFIG. 6a , the center of the oval is not coincided with the center of theround, certain deviation exists, the oval is in eccentric distributionrelative to the center of the round, therefore, viewing from singledisplay units, the quantity of pixels at one side of the center of theround and the quantity of the pixels at the other side of the round arenot equal along the first direction in the oval effective region, andsuch asymmetric pixel distribution causes resolutions of imageinformation of different visual angles displayed in the first directionto possibly have difference. Usually, objects to be displayedcorresponding to two adjacent display units have small difference, inthe solution, the at least two adjacent display units are symmetricallyinclined to cause the changed oval effective regions of the two adjacentdisplay units to be in symmetric eccentric distribution. Thereby viewingfrom the whole of the two adjacent display units, the pixels distributedalong the first direction in the two effective regions are as uniform aspossible, the resolutions of the different visual angle information ofthe first direction are mutually complemented, and it is favorable forobtaining more balanced resolutions of the different visual angleinformation of the first direction.

In a case of performing inclining control over the at least one displayunit, the display unit is taken as a fineness to cause each display unitto be inclined relative to the initial normal thereof rather than takingthe display array as the fineness to integrally incline the wholedisplay array. The advantage of such processing is to improve controlflexibility, in a situation that content to be displayed has certaindepth distribution, each display unit is inclined relative to an initialnormal thereof of the display unit, and it is favorable for causing anoverlapping range of depths of field ranges of light field informationdisplayed by each of different display units to have overlapping ofcertain extent.

One optional structure of the light field display is taken as an examplefor description, as shown in FIG. 5c , a light path graph of the lightfield display is equivalent to that the lens in the sub-lens arrayimages a diffusion round of the display unit corresponding to the lensto be a first real image or a first virtual image, which then images toa second real image on retinas by eye equivalent lenses, therefore, thepixels in different positions on the display unit can display objectinformation of different depths. The distance from the pixel position onthe display unit to certain lens optical axis of the sub-lens arraycorresponds to a radius of the imaging diffusion round of the objectinformation of different depths:

$\begin{matrix}{d = {\frac{{Afu}_{f}}{u_{f} - f}\left( {\frac{1}{u_{f}} - \frac{1}{u}} \right)}} & (1)\end{matrix}$

wherein, A is the radius of one lens in the sub-lens array of the lightfield display, f is a focal length of one lens in the sub-lens array ofthe light field display, u_(f) is the distance from a focusing plane ofthe one lens in the sub-lens array to the center of the lens, and u isthe distance from one displayed real image or virtual image to thecenter of the corresponding lens in the sub-lens array (the distance isa positive value for the real image and is a negative value for thevirtual image).

An imaging formula of the eye equivalent lens (regarded as a main lens)is:

$\begin{matrix}{\frac{1}{F} = {{\frac{1}{U} + \frac{1}{V}} = {\frac{1}{U} + \frac{1}{L - u}}}} & (2)\end{matrix}$

wherein, U is the distance from the second real image to the main lens,F is a focal length of the main lens, and L is the distance from theoptical center of the main lens to the optical center of the lens.

An imaging formula of certain lens in the sub-lens array:

$\begin{matrix}{\frac{1}{f} = {\frac{1}{u_{f}} + \frac{1}{v}}} & (3)\end{matrix}$

Wherein, v is the distance from certain pixel of an effective regioncorresponding to the lens in the display unit to the lens.

According to formulas (1), (2) and (3), it can be obtained that:

$\begin{matrix}{\frac{1}{U} = {\frac{1}{F} + \frac{1}{\frac{1}{\frac{1}{f} - {\frac{1}{v}\left( {1 + \frac{d}{A}} \right)}} - L}}} & (4)\end{matrix}$

It can be seen that when the display array or display unit is inclined,v from different pixels of the display array or display unit to thecorresponding lens is changed and can be adjusted according to theforegoing formula to keep other parameters unchanged as much aspossible. If the whole display array is inclined relative to the initialnormal thereof, the difference of the v from different pixels of thedisplay array or display unit to the corresponding lens is larger, whichleads to that an overlapping range of depths of field ranges of lightfield information displayed by each of different display regions of thedisplay array is oversmall or not overlapped, which possibly influencesgeneration of a focusing image. In the example embodiment of the presentapplication, each display unit in the at least one display unit isinclined relative to the initial normal of the display unit, control isflexible, and it is favorable for avoiding an overlarge distance betweendifferent pixels on the display array and the corresponding lenses onthe plane of the sub-lens array, to cause a range of depths of fieldranges of light field information displayed by each of different displayunits to have certain overlapping to certain extent, thereby furtherbeing favorable for generating and displaying a refocusing image.

In the example embodiment of the present application, by inclining thedisplay unit relative to the initial normal thereof, the shape and sizeof the effective region of the display unit can be changed while apractically changed pixel quantity of the effective region relates tothe pixel quantity and relative positions of the display unit.Optionally, before the displaying the image to be shot by the displaysystem, the method further comprises: causing the at least one displayunit to rotate around a normal direction thereof to cause a maximalquantity of pixels allowing to be changed along the first direction ofthe at least one display unit to be increased. For example, as shown inFIG. 6b , the display unit is square, the display unit can be rotated by45 degrees around a normal direction thereof to cause the quantity ofthe pixels distributed along the first direction to be increased, thequantity of the pixels allowing to be changed along the first directionin each effective region of the display unit is increased, thus beingfavorable for increasing a proportion of the pixels distributed alongthe first direction in the effective region among existing pixels of thedisplay unit, further being favorable for increasing a proportion of thevisual information of the first direction comprised in the contentdisplayed by the display unit, realizing the differentiated display ofthe visual information of different directions, and improving apractical use ratio of the resource as much as possible. It should beindicated that the operation of rotating the display unit can beperformed before the inclining of the display unit or after theinclining of the display unit, and a realizing manner is very flexibleand is not limited by the embodiment of the present application.

Optionally, before the displaying the content by the changed displaysystem, the method further comprises: increasing each effective regionof the at least one display unit. The solution can cause more pixels ofthe display unit to participate in the content display and improve apractical use ratio of the pixels of the display unit; in addition, theprocessing of increasing the effective region of the display unit andthe processing of inclining the display unit relative to the initialnormal thereof and/or rotating the display unit around the normalthereof are combined to be favorable for increasing a controllable roomof the quantity of the pixels distributed along the first direction andthe second direction in the effective region, and it is more favorablefor realizing differentiated visual information display of differentdirections.

The light field display is taken as an example, according to an opticalimaging principle, the image formed on a retina of a user displayed whenthe user sees the image displayed by the display array through thesub-lens array corresponds to the image serving as the content to bedisplayed according to certain proportion, therefore, according toimaging information of the retinas, a corresponding relation between theequivalent image and the display region of the display unit can bederived, and with reference to FIG. 7, a following relational expressioncan be obtained according to an imaging formula and a triangulargeometric relation:

$\begin{matrix}{{\frac{1}{U} + \frac{1}{V}} = \frac{1}{F}} & (5) \\{{\frac{1}{v} + \frac{1}{L - v}} = \frac{1}{f}} & (6) \\{\frac{H}{h} = \frac{U}{V}} & (7) \\{\frac{h - d_{i}}{h^{\prime} + d_{i}} = \frac{L - V}{v}} & (8)\end{matrix}$

wherein, U, V and L, are respectively distances from an eye ball lens tothe retina, to displayed image and to the sub-lens array, F and f arerespectively focal lengths of an eye ball and the sub-lens, v is adistance from the sub-lens to the pixel of the display unit, H, h, andh′ are image surfaces of certain object virtualized on the retina andthe image size of the ith sub-lens on the corresponding imaging region,di is a distance between the ith sub-lens and a reference point, thereference point can be any point of the image of the content to bedisplayed, the reference point takes a crossing point between an opticalaxis of the eye ball and the display unit as an example for simplifyingcalculation, and it can be obtained according to the formulas (5)-(8),

$\begin{matrix}{h^{\prime} = {\frac{f\left( {{d_{i}U} - {LH}} \right)}{U\left( {v - f} \right)} + \frac{H}{Uv}}} & (9)\end{matrix}$

For any imaging point on the retina (assuming that the distance from thepoint to the optical center of the eye ball lens is H, the pointequivalently corresponds to certain equivalent point of the image to bedisplayed, and H is equivalent to relative position information of therelative equivalent image to be displayed of the corresponding point andthe reference point corresponding to the optical center of the eye balllens), h′ of the ith sub-lens on the corresponding imaging region can becalculated, that is, an imaging point position thereof on thecorresponding imaging region of the ith sub-lens can be obtained bymapping. Therefore, according to the formula (9), when other parametersare kept unchanged, by adjusting v and f, and h′ can be adjusted whilethe formula (5) is established. That is to say, parameters such as afocal length and curvature of the lens and/or the distance between thelens and the display unit can be reasonably adjusted to cause the h′ ofthe ith sub-lens on the corresponding imaging region to be increased, h′reflects the size of the effective region, and when the h′ is increased,the effective region of the display unit is also increased.

Specifically, optical parameters of the lens corresponding to the atleast one display unit can be adjusted to increase each effective regionof the at least one display unit, and the optical parameters of the lenscomprise but are not limited to parameters such as a focal length andcurvature of the lens. And/or, the position of the lens is moved, forexample, the lens corresponding to the at least one display unit ismoved along an optical axis direction thereof to increase each effectiveregion of the at least one display unit. And/or, the at least onedisplay unit can be translated along the initial normal directionthereof to increase each effective region of the at least one displayunit. By any foregoing method, each effective region of the at least onedisplay unit is increased, thus, light emitted from more pixels in eachdisplay unit of the at least one display unit can be transmitted to avisual angle range of the display system by the lens and enters eyes ofthe user to image, thereby improving a practical use ratio of the pixelsof each display unit. In addition, by matching a solution of adjustingthe pixel distribution of the corresponding display unit and/or rotatingthe display unit around the normal direction thereof, the practical useratio of the pixels of the corresponding display unit can be furtherimproved, more controllable room is provided for changing the ratio ofthe pixels distributed along the two directions of the display unit, andit is more favorable for realizing differentiated visual informationdisplay of different directions. It needs to be indicated that theoperation of the increasing the effective region of the display unit canbe performed before the operation of rotating the display unit and/orinclining the display unit, and can also be performed after theoperation of rotating the display unit and/or inclining the displayunit, a realizing manner is very flexible and is not limited by theembodiment of the present application.

Further, in combination with any display control method according to theembodiment of the present application, optionally, before inclining theat least one display unit relative to the initial normal thereof, themethod further comprises: determining the first direction. For certaindisplay unit, the first direction and the second direction are flexiblydetermined under a relation of being respectively vertical to theinitial normal of the display unit and mutually orthogonal, that is, thefirst direction and the second direction are flexibly determined under arelation of being in a plane parallel with the non-inclined display unitand mutually orthogonal, and are not limited by the present application.After the first direction is determined, according to a mutual relationbetween the first direction and the second direction, the seconddirection can be determined, and differentiated visual angle informationdisplay in the first direction and the second direction is realized. Inthe solution, a visual angle information display direction to beenhanced or weakened can be determined according to practicalrequirements, and a realizing manner is very flexible and can meetdiversified practical application requirements.

Optionally, determining the first direction comprises: determining ahorizontal direction vertical to the initial normal of the display unitas the first direction; and correspondingly, the vertical directionvertical to the initial normal of the display unit is the seconddirection. In the solution, the horizontal direction vertical to theinitial normal of the display unit serves as the first direction ofvisual angle information display to be enhanced or weakened. Researchindicates that eyes (left eye and right eye) are in horizontaldistribution, causing to certain extent that the eyes are more sensitiveto visual angle information in the horizontal direction and are lesssensitive to the visual angle information in the vertical direction,leading to that in a content display process, visual information in thehorizontal direction and the vertical direction have different visualinfluences on the eyes in a scene application such as light fieldreconfiguration. Usually, attention or demand quantity on the visualinformation in the horizontal direction is larger than that on thevisual information in the vertical direction, the horizontal directionparallel with the display unit serves as the first direction, thevertical direction parallel with the display unit serves as the seconddirection, thus realizing differentiated display of the visualinformation of different directions of the display unit, the proportionof the visual information of the first direction (horizontal direction)is increased in the image information displayed by the display unit,and/or, the proportion of the visual information of the second direction(vertical direction) is reduced in the image information displayed bythe display unit, thereby improving a practical use ratio of resource,and better meeting diversified practical application requirements.

Optionally, determining the first direction comprises: determining avertical direction vertical to the initial normal direction of thedisplay unit as the first direction; and correspondingly, the horizontaldirection vertical to the initial normal direction of the display unitis the second direction. In the solution, the vertical directionvertical to the initial normal direction of the display unit serves asthe first direction of the visual angle information to be enhanced orweakened, thereby meeting the practical application requirements ofdisplaying the visual angle information needing to be enhanced orweakened in the vertical direction vertical to the normal direction ofthe display unit.

Optionally, determining the first direction comprises: determining thefirst direction according to a size of the display system. The size ofthe display system can be denoted by a transverse length and/orlongitudinal length of the display array of the display system. Theinventor of the present application finds in a process of practicing theembodiment of the present application that in some cases, the size ofthe display system may influence a viewing behavior of the user for thedisplay content. For example, a light field reconfigured by the displaysystem presents certain stereoscopic distribution in space, the user cansee different visual angle information distributed along the horizontaldirection by moving head left and right, for example, see a left view ora right view of certain object; the user can see different visual angleinformation distributed along the vertical direction by moving the headup and down, for example, see, a top view or a bottom view of certainobject. If the longitudinal height of the display system is higher, aprobability that the user moves the head to view up and down is lowerand a manner that the user moves the head left and right to seedifferent visual angle information is more natural, therefore, thehorizontal direction vertical to the initial normal of the display unitis determined as the first direction, the visual angle information ofthe first direction is enhanced and displayed to improve an angleresolution of the horizontal direction; the visual angle information inthe vertical direction vertical to the initial normal of the displayunit can be weakened and displayed to reduce the data processing volumerequired by the visual angle information of the vertical direction thatthe user pays less attention or is less sensitive. In the solution, thedirection of the visual angle information display to be enhanced orweakened is determined according to the size of the display system, andit is favorable for meeting diversified practical applicationrequirements.

Optionally, determining the first direction comprises: determining thefirst direction according to moving information of the display system.The inventor of the present application finds in a process of practicingthe embodiment of the present application that the moving information ofthe display system is related to aspects of a viewing habit, operationand a man-machine interaction manner of the user to some extent. Forexample, in some game operations, the operation of inclining the displaysystems such as a smart phone by the user may be involved to realizeman-machine interactive control, etc., therefore, the direction of thevisual angle information display to be enhanced or weakened can bedetermined according to the moving information of the display system tocause the practically displayed visual angle information of the moreattended, important or sensitive direction to be richer to improve theangle resolution. Further optionally, determining the first directionaccording to the moving information of the display system comprises:determining a reference direction corresponding to the movinginformation of the display system as the first direction according to amapping relation between the moving information of the display systemand the reference direction. The reference direction corresponding tothe moving information and inclined relative to the horizontal directionof the display system is determined as the horizontal direction, and thereference direction corresponding to the moving information and inclinedrelative to the vertical direction of the display system is determinedas the vertical direction. Thus, in practical application, currentmoving information of the display system can be obtained by but notlimited to parts such as a gravity sensor, and the directioncorresponding to the current moving information of the display system isdetermined as the first direction, the visual angle information in thefirst direction is enhanced and displayed to improve an angle resolutionof the first direction; the visual angle information in the seconddirection can be weakened and displayed to reduce the data processingvolume required by the visual angle information of the verticaldirection that the user pays less attention or is less sensitive.

After a ratio of the pixels distributed along the two directions of theat least one display unit of the display system is changed by adoptingthe example embodiment of the present application, according topractical requirements, a flexible display control technology can bedetermined for content display control according to the display systemwith the changed pixel ratio to improve a display effect and userexperience, and the embodiment of the present application does not limita specific display control technology according to the display systemwith the changed pixel ratio. For example, a manner of inclining eachdisplay unit relative to the initial normal thereof of the light fielddisplay is adopted to change a ratio of pixels distributed along thefirst direction and the second direction in each effective displayregion of the display unit, after such change, distances from differentpixels of the display unit to corresponding lenses of the display unitsare different, therefore, in a traditional light field processingtechnology for content display, fixed distances between each pixel ofthe display array and the lens of the sub-lens array is replaced withthe actual distance from each pixel of each display unit to thecorresponding lens, so as to preprocess the light field display content,light field display is performed based on the preprocessed light fieldcontent, thereby realizing the differentiated display of differentvisual angle information of the first direction and the seconddirection.

It should be understood by a person skilled in the art that in variousembodiments of the present application, the value of the serial numberof each step described foregoing does not mean an execution sequence,and the execution sequence of each step should be determined accordingto the function and internal logic thereof, and should not be anylimitation on the implementation procedure of the embodiments of thepresent application.

FIG. 8 is a logic block diagram of a first display control apparatusaccording to an embodiment of the present application. As shown in FIG.8, the display apparatus according to the embodiment of the presentapplication can comprise: an inclining control module 81 and a displaycontrol module 82.

The inclining control module 81 is configured to incline at least onedisplay unit relative to an initial normal thereof to change a ratio ofpixels distributed along two directions in each effective display regionof the at least one display unit of a display system, wherein lightemitted by each pixel in the effective display region of each displayunit in the at least one display unit is transmitted to a visual anglerange by a lens corresponding to the display unit in the display system,and the two directions comprise a first direction and a second directionparallel with the display unit and orthogonal with each other.

The display control module 82 is configured to display a content to bedisplayed by the changed display system.

According to one or more example embodiments of the present application,a manner of inclining at least one display unit relative to an initialnormal thereof is adopted to change a ratio of pixels distributed alongthe first direction and the second direction in each effective displayregion of at least one display unit, to cause that in each effectivedisplay region of the at least one display unit, a quantity of pixelsdistributed along the first direction and a quantity of pixelsdistributed along the second direction are different, a pixel ratio ofthe two is not equal to 1, thus, by using the display system with the atleast one inclined display unit for content display, a proportion ofpractically displayed parallax information of the at least one displayunit respectively displayed in the first direction and the seconddirection is changed, and differentiated display of the visual angleinformation in different directions is realized to cause the practicallydisplayed content to present differentiated angle resolutions ofdifferent directions, thereby better meeting diversified practicalapplication requirements.

A device representing manner of the display control apparatus is notlimited, for example, the display control apparatus can be some or oneindependent part, which matches and communicates with a display systemcomprising display unit; or the display control apparatus can beintegrated in the display system comprising the display unit as certainfunction module.

Optionally, the display system comprises a light field display, thelight field display comprises a display array and a sub-lens array,which are arranged in sequence, the sub-lens array comprises a pluralityof lens in array distribution, the display array comprises a pluralityof display units in array distribution. Optionally, in a realizingmanner for content display by the light field display, themultidirectional visual angle information of at least one object in thecontent is respectively displayed by the pixels of the one of the atleast one display unit, or the multidirectional visual angle informationof at least one object in the content is respectively displayed by atleast two of the at least one display unit. In the solution, by changinga ratio of the pixels along two orthogonal directions of the at leastone display unit of the light field display, a proportion ofrespectively practically displayed parallax information of the at leastone display unit in the first direction and the second direction can bechanged, and differentiated display of the visual angle information indifferent directions is realized to cause the practically displayedcontent to present differentiated angle resolutions in differentdirections, thereby better meeting diversified practical applicationrequirements.

Optionally, the display system comprises a display array, the displayarray comprises a plurality of displays in array distribution, and thedisplay comprises one display unit and one lens arranged in sequence.Optionally, in a realizing manner of for content display based on thedisplay array, the multidirectional visual angle information of at leastone object in the content is transmitted the lenses. In the solution, bychanging the pixel ratio of each of the display units of the displayarray along two orthogonal directions, a proportion of respectivelypractically displayed parallax information of the display units in thefirst direction and the second direction can be changed, anddifferentiated display of the multidirectional visual angle informationin different directions is realized to cause the practically displayedcontent to present differentiated angle resolutions of differentdirections, thereby better meeting diversified practical applicationrequirements.

Optionally, as shown in FIG. 9, the inclining control module 81comprises: an inclining control sub-module 811. The inclining controlsub-module 811 is configured to incline the at least one display unit byan angle relative to the first direction to change the shape of eacheffective region of the at least one display unit, thereby increasingthe quantity of the pixels distributed along the first direction in eacheffective region of the at least one display unit. In the situation, theeffective region with the changed shape of the display unit is an ovalof which the long axis is parallel with the first direction, and thequantity of the pixels distributed along the first direction in theeffective region is more than the quantity of the pixels distributedalong the second direction in the effective region.

Optionally, the inclining direction and/or inclining angle of at leasttwo display units in the display system relative to the first directioncan be same or different. The solution has a very flexible realizingmanner to meet diversified practical application requirements.

For example, the inclining direction and inclining angle of at least twodisplay units in the display system relative to the first direction aresame. The solution is simple to control and easy to realize, and isfavorable for realizing differentiated visual information display ofdifferent direction of the at least two display units, and realizingunified control.

For another example, the at least two display units in the displaysystem are inclined relative to first direction in the oppositedirection but by the same inclining angle. The solution symmetricallyinclines the at least two adjacent display units, causing the changedoval effective regions of the at least two adjacent display units to bein symmetric eccentric distribution, thereby viewing from the whole ofthe two adjacent display units, the pixels distributed along the firstdirection in the two effective regions are as uniform as possible, theresolutions of the different visual angle information of the firstdirection are mutually complemented, and it is favorable for obtainingmore balanced resolutions of the different visual angle information ofthe first direction.

Optionally, the display control apparatus further comprises a rotatingcontrol module 83. The rotating control module 83 is configured to causethe at least one display unit to rotate around a normal directionthereof to cause a maximal quantity of pixels allowing to be changedalong the first direction in the effective region of the at least onedisplay unit to be increased. The solution causes the quantity of thepixels allowing to be changed along the first direction in the effectiveregion of the rotated display unit to be increased compared with that ofthe display unit before rotating, thereby being favorable for increasingthe proportion of the pixels distributed along the first direction inthe effective region among existing pixels of the display unit, beingfavorable for increasing a proportion of the visual information of thefirst direction comprised in the content displayed by the display unit,realizing the differentiated display of the visual information ofdifferent directions, and improving a practical use ratio of theresource as much as possible.

Optionally, the display control apparatus further comprises an effectiveregion increasing module 84. The effective region increasing module 84is configured to increase each effective region of the at least onedisplay unit.

Optionally, the effective region increasing module 84 comprises adisplay unit translating sub-module 841. The display unit translatingsub-module 841 is configured to translate the at least one display unitalong the normal direction thereof to increase each effective region ofthe at least one display unit. The solution moves the at least onedisplay unit along the corresponding initial normal direction thereof toincrease each effective region of the at least one display unit.

Optionally, the effective region increasing module 84 comprises a lenstranslating sub-module 842. The lens translating sub-module 842 isconfigured to translate the at least one lens along each optical axisdirection of the at least one lens corresponding to the at least onedisplay unit to increase each effective region of the at least onedisplay unit. The solution moves the lens corresponding to the at leastone display unit along the optical axis thereof to increase eacheffective region of the at least one display unit.

Optionally, the effective region increasing module 84 comprises anoptical parameter adjusting sub-module 843. The optical parameteradjusting sub-module 843 is configured to adjust optical parameters ofeach of the at least one lens respectively corresponding to the at leastone display unit to increase each effective region of the at least onedisplay unit. The optical parameters of the lens comprise but are notlimited to parameters such as a focal length and curvature of the lens.The solution can increase each effective region of the at least onedisplay unit by adjusting the optical parameters of the lenscorresponding to the at least one display unit.

Optionally, as shown in FIG. 10, the display control apparatus furthercomprises: a direction determining module 85. The direction determiningmodule 85 is configured to determine the first direction. In thesolution, a visual angle information display direction to be enhanced orweakened can be determined according to practical requirements, and arealizing manner is very flexible and can meet diversified practicalapplication requirements.

Optionally, the direction determining module 85 comprises a horizontaldirection determining sub-module 851, configured to determine ahorizontal direction vertical to the initial normal of the display unitas the first direction. In the solution, the horizontal directionvertical to the initial normal of the display unit serves as the firstdirection of visual angle information display to be enhanced orweakened, thereby meeting the practical application requirements ofdisplay of the visual angle information required to be enhanced orweakened of the direction.

Optionally, the direction determining module 85 comprises a verticaldirection determining sub-module 852. The vertical direction determiningsub-module 852 is configured to determine a vertical direction verticalto the initial normal of the display unit as the first direction. In thesolution, the vertical direction vertical to the initial normal of thedisplay unit serves as the first direction of visual angle informationdisplay to be enhanced or weakened, thereby meeting the practicalapplication requirements of display of the visual angle informationneeding to be enhanced or weakened of the direction.

Optionally, the direction determining module 85 comprises a firstdirection determining sub-module 853. The first direction determiningsub-module 853 is configured to determine the first direction accordingto the size of the display system. In the solution, the direction of thevisual angle information display to be enhanced or weakened isdetermined according to the size of the display system, and it isfavorable for meeting diversified practical application requirements.

Optionally, the direction determining module 85 comprises a movingdirection determining sub-module 854. The moving direction determiningsub-module 854 is configured to determine the first direction accordingto moving information of the display system. In the solution, thedirection of the visual angle information display to be enhanced orweakened can be determined according to the moving information of thedisplay system to cause the practically displayed visual angleinformation of the more attended, important or sensitive direction to bericher to improve the angle resolution.

Further optionally, the moving direction determining sub-module 854comprises a direction determining unit 8541. The direction determiningunit 8541 is configured to determine a reference direction correspondingto the moving information of the display system as the first directionaccording to a mapping relation between the moving information of thedisplay system and the reference direction. In the solution, thedirection corresponding to current moving information of the displaysystem is determined as the first direction, the visual angleinformation of the first direction is enhanced and displayed to improvean angle resolution of the horizontal direction; the visual angleinformation in the second direction can be weakened and displayed toreduce the data processing volume required by the visual angleinformation of the vertical direction that the user pays less attentionor is less sensitive.

FIG. 11 is a logic block diagram of a fifth display control apparatusaccording to an embodiment of the present application. The embodiment ofthe present application does not limit a specific realizing manner ofthe display control apparatus 1100. As shown in FIG. 11, the displaycontrol apparatus 1100 can comprise:

a processor 1110, a communication interface 1120, a memory 1130 and acommunication bus 1140;

the processor 1110, the communication interface 1120 and the memory 1130finish mutual communication by the communication bus 1140.

The communication interface 1120 is configured to communicate with adevice with a communicating function, an external light source and thelike.

The processor 1110 is configured to execute a program 1132, andspecifically execute related steps in the embodiments of any displaycontrol method.

For example, the program 1132 can comprise a program code, and theprogram code comprises a computer operation command.

The processor 1110 can be a central processing unit (CPU), or anapplication specific integrated circuit (ASIC), or may be configured asone or more integrated circuits that implement the embodiments of thepresent application.

The memory 1130 is configured to store the program 1132. The memory 1130can comprise a high speed random access memory (RAM), and can alsocomprise a non-volatile memory such as at least one magnetic diskmemory.

For example, in one optional realizing manner, the processor 1110 canexecute the following steps by executing the program 1132: inclining atleast one display unit relative to an initial normal thereof to change aratio of pixels distributed along two directions in each effectivedisplay region of the at least one display unit of a display system,wherein light emitted by each pixel in the effective display region ofeach display unit in the at least one display unit is transmitted to avisual angle range by a lens corresponding to the display unit in thedisplay system, and the two directions comprise a first direction and asecond direction parallel with the display unit and orthogonal with eachother; and displaying a content to be displayed by the changed displaysystem.

In other optional realizing manners, the processor 1110 can execute thesteps mentioned in any foregoing embodiment by executing the program1132 which is not repeated herein.

For the implementation of steps in the program 1132 refers to thecorresponding descriptions of corresponding steps, modules, sub-modulesand units in the foregoing embodiments, which are not repeated herein.It may be clearly understood by a person skilled in the art that, forthe purpose of convenient and brief description, reference may be madeto the description of corresponding procedures in the foregoing methodembodiments for detailed working procedures of the foregoing devices andmodules, and details are not repeated herein.

In forgoing embodiments of the present application, serial numbersand/or sequence of the embodiments are merely for the purpose ofdescription and are not representative of good and poor embodiments.Description on each embodiment has an emphasis, and the part notdescribed in detail in certain embodiment can refer to relateddescription of other embodiments. Related description of theimplementing principles or processes of the apparatus, device or systemembodiments can refer to recording of corresponding embodiments and isrepeated herein.

It can be appreciated by a person of ordinary skill in the art that,exemplary units and method steps described with reference to theembodiments disclosed in this specification can be implemented byelectronic hardware or a combination of computer software and electronichardware. Whether these functions are executed by hardware or softwaredepends on specific applications and design constraints of the technicalsolution. A person skilled in the art may use different methods toimplement the described functions for each specific application, butsuch implementation should not be construed as a departure from thescope of the present application.

If the function is implemented in the form of a software functional unitand is sold or used as an independent product, the product can be storedin a computer-readable storage medium. Based on this understanding, thetechnical solution of the present application essentially, or the partthat contributes to the prior art, or a part of the technical solutionmay be embodied in the form of a software product; the computer softwareproduct is stored in a storage medium and comprises several instructionsfor enabling a computer device (which may be a personal computer, aserver, a network device, or the like) to execute all or some of thesteps of the method in the embodiments of the present application. Theforegoing storage medium comprises a USB flash drive, a removable harddisk, a read-only memory (ROM), a random access memory (RAM), a disketteor a compact disk that can be used for storing a program code.

In the apparatus, method and system embodiments of the presentapplication, obviously, each part (system, subsystem, module,sub-module, unit, subunit and the like) or each step can be decomposed,combined and/or recombined after being decomposed. These decompositionand/or recombination should be regarded as equivalent solutions of thepresent application. Meanwhile, in the forgoing description of specificembodiments, the characteristics described and/or shown aiming at oneembodiment can be used in one or more other embodiments in a same orsimilar manner, can be combined with the characteristics in otherembodiments or replace the characteristics in other embodiments.

It should be emphasized that the terms “comprising/containing” denoteexistence of characteristics, elements, steps or components when used inthe specification, but do not exclude existence or addition of one ormore other characteristics, elements, steps or components.

Finally, it should be indicated that the above embodiments are only usedto describe the present application, rather than limit the presentapplication; various alterations and variants can be made by those ofordinary skill in the art without departing from the spirit and scope ofthe present application, so all equivalent embodiments also belong tothe scope of the present application, and the scope of patent protectionof the present application should be defined by claims.

What is claimed is:
 1. A method, comprising: inclining, by a systemcomprising a processor, at least one display unit relative to an initialnormal of the at least one display unit to change a ratio of pixelsdistributed along two directions in each effective display region of theat least one display unit of a display system resulting in a changeddisplay system, wherein light emitted by each pixel in each effectivedisplay region of each display unit in the at least one display unit istransmitted according to a visual angle range by each lens correspondingto each display unit in the display system, and the two directionscomprise a first direction and a second direction that are parallel withthe at least one display unit and orthogonal with each other; anddisplaying content to be displayed by the changed display system.
 2. Themethod of claim 1, wherein the display system comprises a light fielddisplay, wherein the light field display comprises a display array and asub-lens array, which are arranged in sequence, wherein the sub-lensarray comprises a plurality of lenses in a first array distribution, andwherein the display array comprises a plurality of display units in asecond array distribution.
 3. The method of claim 2, whereinmultifunctional visual angle information of at least one object in thecontent is respectively displayed by a plurality of pixels of one of theat least one display unit.
 4. The method of claim 2, whereinmultifunctional visual angle information of at least one object in thecontent is respectively displayed by at least two of the at least onedisplay unit.
 5. The method of claim 1, wherein the display systemcomprises a display array, wherein the display array comprises aplurality of displays in array distribution, and wherein a display ofthe plurality of displays comprises a display unit of the at least onedisplay unit, and a lens arranged in sequence.
 6. The method of claim 5,wherein multifunctional visual angle information of at least one objectin the content is respectively displayed by a plurality of lenses. 7.The method of claim 1, wherein the inclining comprises: inclining eachdisplay unit of the at least one display unit by an angle relative tothe first direction to change a shape of each effective region of the atleast one display unit, thereby increasing a quantity of pixelsdistributed along the first direction in each effective region of the atleast one display unit.
 8. The method of claim 7, wherein an effectiveregion with a changed shape is an oval of which a long axis is parallelwith the first direction.
 9. The method of claim 7, wherein at least oneof an inclining direction or an inclining angle of at least two displayunits in the display system relative to the first direction aredifferent.
 10. The method of claim 7, wherein at least one of aninclining direction or an inclining angle of at least two display unitsin the display system relative to the first direction are same.
 11. Themethod of claim 7, wherein at least two display units in the displaysystem are opposite in inclining direction and same in inclining anglerelative to the first direction.
 12. The method of claim 1, furthercomprising: before the displaying the content to be displayed by thechanged display system, rotating the at least one display unit around anormal of the at least one display unit to increase a maximal quantityof pixels allowed to be changed along the first direction in eacheffective region of the at least one display unit.
 13. The method ofclaim 1, further comprising: before the displaying the content to bedisplayed by the changed display system, increasing each effectiveregion of the at least one display unit.
 14. The method of claim 13,wherein the increasing each effective region of the at least one displayunit comprises: translating the at least one display unit along aninitial normal direction of each display unit of the at least onedisplay unit to increase each effective region of the at least onedisplay unit.
 15. The method of claim 13, wherein the increasing eacheffective region of the at least one display unit comprises:respectively moving at least one lens along an optical axis direction ofthe at least one lens corresponding to the at least one display unit toincrease each effective region of the at least one display unit.
 16. Themethod of claim 13, wherein the increasing each effective region of theat least one display unit comprises: adjusting an optical parameter ofat least one lens respectively corresponding to the at least one displayunit to increase each effective region of the at least one display unit.17. The method of claim 1, further comprising: before the inclining theat least one display unit relative to the initial normal, determiningthe first direction.
 18. The method of claim 17, wherein the determiningthe first direction comprises: determining a horizontal directionvertical to the initial normal of the at least one display unit as thefirst direction.
 19. The method of claim 17, wherein the determining thefirst direction comprises: determining a vertical direction vertical tothe initial normal of the at least one display unit as the firstdirection.
 20. The method of claim 17, wherein the determining the firstdirection comprises: determining the first direction according to a sizeof the display system.
 21. The method of claim 17, wherein thedetermining the first direction comprises: determining the firstdirection according to moving information of the display system.
 22. Themethod of claim 17, wherein the determining the first directionaccording to the moving information of the display system comprises:determining a reference direction corresponding to the movinginformation of the display system as the first direction according to amapping relation between the moving information of the display systemand the reference direction.
 23. An apparatus, comprising: a memory thatstores executable modules; and a processor, coupled to the memory, thatexecutes or facilitates execution of the executable modules, theexecutable modules comprising: an inclining control module configured toincline at least one display unit relative to an initial normal thereofto change a ratio of pixels distributed along two directions in eacheffective display region of the at least one display unit of a displaysystem resulting in a changed display system, wherein light emitted byeach pixel in each effective display region of each display unit in theat least one display unit is transmitted to a visual angle range by alens corresponding to a display unit of the at least one display unit inthe display system, and the two directions comprise a first directionand a second direction parallel with the at least one display unit andorthogonal with each other; and a display control module configured todisplay content to be displayed by the changed display system.
 24. Theapparatus of claim 23, wherein the display system comprises a lightfield display, the light field display comprises a display array and asub-lens array, which are arranged in sequence, the sub-lens arraycomprises a plurality of lenses in a first array distribution, and thedisplay array comprises a plurality of display units in a second arraydistribution.
 25. The apparatus of claim 24, wherein multifunctionalvisual angle information of at least one object in the content isrespectively displayed by a plurality of pixels of the display unit. 26.The apparatus of claim 24, wherein multifunctional visual angleinformation of at least one object in the content is respectivelydisplayed by at least two of the at least one display unit.
 27. Theapparatus of claim 23, wherein the display system comprises a displayarray, the display array comprises a plurality of displays in arraydistribution, and a display of the plurality of displays comprises thedisplay unit and the lens arranged in sequence.
 28. The apparatus ofclaim 27, wherein multifunctional visual angle information of at leastone object in the content is respectively displayed by a plurality oflenses.
 29. The apparatus of claim 23, wherein the inclining controlmodule comprises: an inclining control sub-module configured to inclinethe at least one display unit by an angle relative to the firstdirection to change a shape of each effective region of the at least onedisplay unit, thereby increasing a quantity of the pixels distributedalong the first direction in each effective region of the at least onedisplay unit.
 30. The apparatus of claim 29, wherein an effective regionwith a changed shape is an oval of which a long axis is parallel withthe first direction.
 31. The apparatus of claim 29, wherein at least oneof an inclining direction or an inclining angle of at least two displayunits in the display system relative to the first direction aredifferent.
 32. The apparatus of claim 29, wherein at least one of aninclining direction or an inclining angle of at least two display unitsin the display system relative to the first direction are same.
 33. Theapparatus of claim 29, wherein at least two display units in the displaysystem are opposite in an inclining direction and same in an incliningangle relative to the first direction.
 34. The apparatus of claim 23,wherein the executable modules further comprise: a rotating controlmodule configured to cause the at least one display unit to rotatearound a normal direction of the at least one display unit to cause amaximal quantity of pixels able to be changed along the first directionin an effective region of the at least one display unit to be increased.35. The apparatus of claim 23, wherein the executable modules furthercomprise: an effective region increasing module configured to increaseeach effective region of the at least one display unit.
 36. Theapparatus of claim 35, wherein the effective region increasing modulecomprises: a display unit translating sub-module configured to translatethe at least one display unit along an initial normal direction of theat least one display unit to increase each effective region of the atleast one display unit.
 37. The apparatus of claim 35, wherein theeffective region increasing module comprises: a lens translatingsub-module configured to translate at least one lens along each opticalaxis direction of the at least one lens corresponding to the at leastone display unit to increase each effective region of the at least onedisplay unit.
 38. The apparatus of claim 35, wherein the effectiveregion increasing module comprises: an optical parameter adjustingsub-module configured to adjust optical parameters of each of at leastone lens respectively corresponding to the at least one display unit toincrease each effective region of the at least one display unit.
 39. Theapparatus of claim 23, wherein the executable modules further comprise:a direction determining module configured to determine the firstdirection.
 40. The apparatus of claim 39, wherein the directiondetermining module comprises: a horizontal direction determiningsub-module configured to determine a horizontal direction vertical tothe initial normal of the display unit as the first direction.
 41. Theapparatus of claim 39, wherein the direction determining modulecomprises: a vertical direction determining sub-module configured todetermine a vertical direction vertical to the initial normal of thedisplay unit as the first direction.
 42. The apparatus of claim 39,wherein the direction determining module comprises: a first verticaldirection determining sub-module configured to determine the firstdirection according to a size of the display system.
 43. The method ofclaim 39, wherein the direction determining module comprises: a movingdirection determining sub-module configured to determine the firstdirection according to moving information of the display system.
 44. Themethod of claim 43, wherein the moving direction determining sub-modulecomprises: a direction determining unit configured to determine areference direction corresponding to the moving information of thedisplay system as the first direction according to a mapping relationbetween the moving information of the display system and the referencedirection.
 45. A display control apparatus, comprising: a processor, acommunication interface, a memory and a communication bus, wherein theprocessor, the communication interface and the memory finish mutualcommunication by the communication bus, wherein the memory is configuredto store at least one command, and wherein the at least one commandenables the processor to execute operations, comprising: inclining atleast one display unit relative to an initial normal of the at least onedisplay unit to change a ratio of pixels distributed along twodirections in respective effective display regions of the at least onedisplay unit of a display system resulting in a changed display system,wherein light emitted by each pixel in the respective display regions ofthe at least one display unit is transmitted according to a visual anglerange by at least one lens corresponding to the at least one displayunit in the display system, and the two directions comprise a firstdirection and a second direction parallel with the at least one displayunit and orthogonal with each other; and displaying content to bedisplayed by the changed display system.
 46. The display controlapparatus of claim 45, wherein the at least one display unit is at leasttwo display units.